Stem winding and setting watch.



No. 795,702. PATENTED JULY 25, 1905. B.. K. HOHMANN & O. J. KAATZ.

STEM WINDING AND SETTING WATCH.

APPLIGATION FILED SEPT. 20,1904.

UNITED STATES PATENT OFFICE.

RICHARD K. HOHMANN AND OTTO J. KAATZ, OF SAN DIEGO, CALIFORNIA.

STEM WINDING AND SETTING WATCH.

Specification of Letters Patent.

Patented July 25, 1905.

Application filed September 20, 1904:. Serial No. 225,289.

T0 (L7/Z whom, t may concern:

Be it known that we, RICHARD K. HoHMANN and O'r'ro J. KAATZ, citizens ofthe United States, residing at San Diego, in the county of San Diego andState of California, have invented new and useful Improvements in Stemfinding and Setting Watches, of which the following is a specification.

This invention relates to setting mechanisms for watches, and has forits objects to produce a simple eficient device of this character whichmay be readily applied to any class of watches now in general usewithout necessitating changes in the construction of the cases or otherparts of the movement and one wherein the number of parts in the settingmechanism will be reduced to a minimum.

With these and other objects in view the invention comprises the novelfeatures of construction and combination of parts more fully hereinafterdescribed.

In the accompanying drawings, Figure 1 is an elevation of a settingmechanism embodying the invention. Fig. 2 is a reverse elevation of thesame. Fig. 3 is an enlarged diagrammatic view of the improved mechanism.

Referring to the drawings, 1 designates a casing having therein adivision-plate 2 and provided with a pendant 3, in which is arranged forlongitudinal movement a winding stem or arbor 4, adapted to be operatedby means of a crown 5, attached to the outer end of the arbor in theusual mannen/there being provided upon said arbor between its ends awinding-pinion 6, designed to mesh with a winding-gear 7, and at theinner end of the arbor a bearing-head 8. The gear 7 is arranged at thecenter of a yoke-plate 9, in turn pivoted at its center to thedivision-plate 2 and carrying at one end a gear 10, adapted to normallymesh with the vwindinggear 11, fixed upon the spring-barrel, there beingalso carried by the yoke-plate a pinion 12, adapted to mesh with anintermediate pinion 13, which is in turn constantly in mesh with thepinion 14 upon the hand-post. The yoke-plate 9 has its end opposite thatcarrying the gear 10 terminated in an engaging portion or finger 15 andalso has xed adjacent to said end a pin or stud 16, which projectsthrough a guidel slot 17, formed in the plate 2, to the opposite orfront side of said plate, where it is engaged by a spring 18, fixed uponand carried by a setting-lever 19, pivoted adjacent to its longitudinalcenter to the plate 2 and having one end disposed within the path of thearbor-head 8. The setting-lever 19 carries at its outer end a fixed pin20, extended through a guideslot 21 in the plate 2 and in engagementwith one arm of an elbow or shipper-lever 22, the terminal of the otherarm of which is designed for engagement, as hereinafter explained, withthe engaging portion or tip 15 of the yokeplate 9, the shipper-leverwhen in such engagement being pressed to engaging position by means of aleaf-spring 23.

In practice the parts will normally occupy the position illustrated inFigs. 1 and 2 with the arbor depressed and the setting-lever 19 shiftedon its pivot and maintained in such position by the action of thearbor-head 8. When the lever 19 is in this normally shifted position,the pin 20, carried thereby,will act to trip the shipper-lever 22against the action of spring 23, thus releasing the adjacent end of theyoke 9, whereupon the spring 18, acting upon the pin 16, maintains theyoke in normal position with the gear 10 in mesh with the gear 11 andthe pinion 12 out of mesh with the pinion 13 or, rin other Words, withthe parts in winding position. When, however, it is desired to move theparts to setting position, the crown is pulled outward, therebyretracting the arbor 3, as usual, and relieving the adjacent end of thesetting-lever 19 from pressure, whereupon the spring 23 acts upon theshipper-lever 22 to rock the latter on its pivot and move its arm intoengagement Withthe tip 15 of the yoke 9, thereby rocking the yoke on itspivotl and throwing the pinion 12 into mesh with the pinion 13 and thegear 10 out of mesh with the gear 11, while at the same time thesetting-lever 19 will, through the action of the main arm of theshipper-lever upon the pin 20, be rocked to the position illustrated inFig. 3, the parts being now in setting position.

It is obvious from the foregoing that there is produced an extremelysimple mechanism in which the number of parts is reduced to a minimumand one which may be readily applied to the various classes of watchesnow in general use and this without necessitating changes in either thecase or the ordinary parts of the movement. In attaining these ends itis to be understood that minor changes in the form, proportions, andgeneral assemblage of the parts herein set forth may be remaintainingthe parts normally in winding' position, a shipper-lever, a springadapted to act upon the latterl for automatically moving and lockinglthe paiits in setting' position lupon movement of the winding-stem torelease the setting-lever, and a pin carried by the settinglever andadapted to act upon the shipper-level' i'oi` positively moving thelatter to releasing position upon movement of the windingstem to no1-malposition.

In testimony whereof we aflix our signatures .in presence of twowitnesses.

RICHARD K. HOI-IMANN. OTTO J. KAATZ. Vitnesses:

T. J. DALnY, E. E. PERKINS.

